Channelized metasomatism in Archean cratonic roots as a mechanism of lithospheric refertilization

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F25%3A00638436" target="_blank" >RIV/67985530:_____/25:00638436 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41467-025-62912-6" target="_blank" >https://www.nature.com/articles/s41467-025-62912-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-025-62912-6" target="_blank" >10.1038/s41467-025-62912-6</a>

Result language
angličtina
Original language name
Channelized metasomatism in Archean cratonic roots as a mechanism of lithospheric refertilization
Original language description
Archean cratons represent stable continental domains which form the nuclei of the Earth's continents due to their thick ( >200 km), mechanically resistant keels. Cratons and their stable roots form through melt and fluid depletion processes. However, metasomatic refertilization may occur due to processes coeval with craton construction and/or overprinting episodes. Magnetotellurics, a geophysical method measuring subsurface electrical resistivity, is sensitive to the compositional and thermal states of the lithosphere and is useful in mapping depleted and refertilized cratonic domains. Here we show the results of a 3D anisotropic inversion to image the lithospheric resistivity structure of the western Superior Craton. The resistivity model reveals widespread (500x300 km(2)) anisotropy with a north-south conductive axis at depths similar to 100-200 km, inferred to represent phlogopite-bearing channels emplaced during mantle plume activity. The results have implications for our understanding of the modification and long-term stability of cratonic lithosphere, and the imaging and interpretation of their preserved geophysical signatures.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology

Project
<a href="/en/project/GF22-17248L" target="_blank" >GF22-17248L: Probing the 4D evolution of active magmatic systems through magnetotelluric monitoring</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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